Concrete-wall mold.



i. W. ALEXANDER.

CONCRETE WALL MOLD. APPLICATION FILED APR.27. 1914.

1,142,388. Paiented June s, 1915.

I Law L. II L .IIIIIiI l. W. ALEXANDER.

. CONCRETE WALL MOLD.

APPLICATION HLEp APR.2?,1914.

1,142,388.' Patented June 8, 1915.

2 SHEETS--SHEET 2.

1HE NORRIS PETERS C0.. PHOTO-LITHO.. WASHINGTUIY. D. C.

JEssE'w. ALEXANDER., or BIRMINGHAM, ALABAMA.

CONCRETE-WALL MOLD.

T0 all whom t may concern Be it known that I, JESSE W. ALEXANDER,

a citizen of the United States, residing atV are z-(a) The production ofform .molds of simple. and inexpensive construction; (la) the provisionof means whereby the plates of which the moldsl are chiefly formed maybe brought into operative positions quickly, accurately and with theminimum exertion of manual effort; (c) a strong and durable constructionboth in the matter of lthe individual members and in the manner of theirassemblage into the complete apparatus.

Having the foregoing special objects,

`- and others of general utility and novelty in view, I have inventedthe apparatus of which a preferred adaptation is illustrated in theaccompanying drawing, in which z` Figure 1 is an elevational view of aset of frames and complementary parts,which constitute a single unit-ofmy invention, vthe same being shown in connection with a section ofvhollow or spaced concrete walls;V

Fig, 2 is a sectional and plan detail on the line 2-2 of Fig. 1; Fig. 3is a detail plan view of the plate operating lever. and adjacent parts,and-Fig. 4 isy a view partly in section and partly in plan, onl the line44 ofmFig. 1.

'In carrying out my invention, I prefer` ably employ a plurality ofvertical stand-- ards, which may be I-beams, channel or L- bars, orother suitable forms, and these are spaced apart siX or eight feet andsupported or secured at their ends in any approved manner. I have shownin the accompanying drawings, a special form of I-beam, designated bythe reference numeral 3, as peculiarly adapted to the members which makeup complete apparatus. These beams are erected on opposite sides of thewall under construction, at the proper distance from the structure toaccommodate the moldplates and their complementary members.

.` Specicaton of Letters Patent.

said frame 10,-10a.

latented June 8, 1915.

Application 1ec1Apri12'7, 1914. Serial No. 834,560.

4-4 represent flat metal bars which are arranged in pairs and spacedapart to receive between them the beams 3, with which they standparallel. Each bar 4 has mounted near its ends, grooved wheels 5, 5,which are adapted to ride on the adjacent flanges of the I-beams. Nearvtheir upper ends, the four bars 4 which make up a frame unit are rigidlyconnected by a horizontal bar 6. Eachpair of bars 4, has bolted theretohorizontally arranged angle-bars 7 8, which hold the bars in trueparallel relation.

9 represents one ofthe mold platesemployed in my apparatus. This is madeof sheet metal in any size desired, at its upper edge is flanged over asat 9a, and along its lower edge is provided with an angle-plate 9b,which serves tostiffen lthe plate, and properly connect it with themembers by which itis supported.

10, 10a, represent respectively the horizontal and vertical portions ofan angular frame preferably formed of channel-iron. T-bars 10b arebolted at the upper corners of the frame 10, and are engaged by theflange 9a to support thefplate 9, in vertical position, the angleeplate9b, resting against the lower corner of the frame' 10.

11 represents a hinge-rod, portions of which are squared, as at 11a,11b. The ends of this rod are journaled in socket-plates 12 which arebolted to one of the bars 4. On the squared portion 11b is mounted ahandle 13 by which the rod is turned in its sockets. On the squaredportions 11a, are mounted horizontally4 extending arms 14, with whichare pivotally connected one end of links 15, the other ends of which arepivotally connected with brackets 16 on the frame .member 10a, thusforming a double hinge connection between the rod 11 and --lVhile I haveshown the various parts that make the complete structure, at the lefthand side of the drawing only, it will be understood that the partsdesignated 7 to 16, respectively are duplicated, and taken togetherprovide the forms for the outer face of the walls under construction.

17, 18, represent respectively, the coreplates of my improved apparatus,the same lcorresponding in size and material withA the plates 9.Thecore-plates are cut and bent over at their upper edges to'providehangers which embrace bolts 19, 20, which-are slidably arranged in slots6*?, in the bar 6,

and in a brace 6", which is bolted to the bar 6 (Fig. 3).

Angle-bars 21, 22, 27 and'28, are bolted to the opposed sides of theplates 17, 18.. A rod. 23 is journaled in the bars'21, 22, and has lalever 24 on its upper end. Portions of the rod 28, are squared andarranged on such portions, are links 25, 26, thev free ends of' whichare slidably and pivotally connected with 'slots 27, (Fig: 4) in thebarss27, 28. In Fig. 4, I have shown the' positions off the@rv link 25whenv the core-plates arefinl theirexfy panded position, and inFi'g. 3,Iaha've showni the lever 24 in the positionitA assumes" when the platesare'retracted, but the latter.k areshown in their expanded relation.

29 represents gravity levers or dogs A:whicha are pivoted on the bars 4,in. positionfso thatthe pointed end of'thedog will eI-igai-ge; the webof bar 3, and. thus support the.` apparatus in whatever: position it mayhavey been raised to," As many of these dogs will be provided as may benecessary yfor the sup'- port of each unit. I

In the use of my improved-apparatus, suitable beams 3`will be erected ina. man'- Vner appropriate to prov-ide vertical standards of vsuiicientrigidity andi height. to

' scribed, will be arranged' at the base of the beams 3, and theouterfface inoldlplates 9',

will. be Vmoved'to the desired relative posit-ion by .operating theleversl. rllhe core-plates 17-1'8, will thenbe expanded to the extentrequired to make concrete. walls. of the def sired thickness',l and.Ythe concreteV will. be poured between the mold.` Walls composed ofplates 9 on the outer tace andplat'es 117-18* respectively onk the innerface.. :When the: concrete has set suflioiently to permit the re"-Vmoval of the plates, the apparatus-will be raised by any suitable means,andV will be' held in such position bythe' ddgs 29 as above set forth.f'

It is obvious that I mayy duplicate the-ar-A rangement and connectionsofI the operating. rods 11, 23, so that: they willsupp'ort. .the

plates 9', 17, 18, at as many points as the character of the work mayrequire.

It' is also obvious that the construction disclosedprovidesfor theproper alinement of the plates and their maintenance, to effect a wallof true dimensionswithout the. use of"ties,vwhil'e facilitatingthe'quick and easy adjustment.- of th-"eplates in planes at right anglesto the face of the walls under construction.

Whatl claimV l. kIrn am apparatuseof the class.describe@V a.y verticallyadjustable; supportingv frame,

outer*v face mold-plates. 'carried thereby,

means; adjustably, connectingt Said' plates with said. framecomprising Iant angulan frame, arockshaft rotatablyY mounted on.; said; supportingVframe-f and; paralleln hinge connections between said rodfandfsaid?anguf lar iframe, substantiallyY parallel. core-plates; adj ustably`vcarried byr said frame, ai vertical'. rocllz-shaft disposed?.betwee-inY said: corefplates. and vjournaleol on one. of said,ycore-plates,-.

and links operatively connectingsaid vertical roekffshaft to: the?otherf oli" said? core 2'. In apparatus-oi theclass .d 'eseribed'gj avertically adjustable supporting;f1ra1:r1e,.V

plates; f i i outery face. mold-plates, vmeans adjustably. connecting?said p'lateswith said:y frame, said;

means'for adjusting said 'core-plates,` saidY f means comprising af rodrotatably connected W-ithtonei of said plates and linksfony said rodhavingipivotali and slidableconnections. p

with the oppositecoreplatef Y,

testimony` whereof; I aiiie.my;signature;V

in thepresencefof two-witnessesA y 4 5 JESSE W. ALEXANDERL lVitnessesz:y i.. Y .A.,Ii. YORK, W' 'Grmngf

